Use an example to explain how investing money in better physical capital (machine, buildings, tools, and equipment) can a country increase its gdp.

When a country’s government or businesses put money into buying better buildings, machines, tools, or equipment, the country can produce more goods and services, better goods and services, or both. The example we use can be simple or complex. For instance, if a small bakery invests in two ovens instead of one, it likely can produce twice as much. If an advertising agency invests in new high-speed computers with powerful art programs, the employees can produce more ads with higher-quality artwork. When people in a country produce more goods and services like this, the nation’s gross domestic product goes up.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer